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The Particle Theory of Matter
Transcript of The Particle Theory of Matter
I am matter too!" The 3 States of Matter There are 3 different states of matter: Liquid Particles in a solid are very close together. Solids can be as large as a building or as small as a grain of sand. Unlike a liquid or gas, a solid will hold it's shape. Particles in a solid are held together by strong attractive forces. An example of a solid is a roll of tape. Solid Particles in a liquid have space in between them, which allows them to easily slip past each other. Particles in a liquid are held together by an average attractive force. A liquid will fill a container of any size and take it's shape. An example of a liquid is coffee. Gas Particles in a gas have the most space in between them and can move around freely in any direction. Particles in a gas are held together by weak attractive forces. Gases can fill a container of any size or shape because the gas molecules spread out and fill the entire space equally. An example of a gas is helium. The Difference Between Pure Substances and Mixtures Mixture Pure Substance Let's Look Closer... Let's have a closer look at the particles in 3 different items used daily. Tape Roll Solid Coffee Liquid Helium Gas Pure Substances A pure substance is a substance made from one type of matter. This is also known as a homogeneous substance. An example of a pure substance is distilled water. Distilled water is a pure substance because any minerals or chemicals are removed from the water particles. Mixture A mixture is a substance made from two or more types of matter mixed together. This is also known as a heterogeneous substance. An example of a mixture is tap water. Tap water is a mixture because it still has minerals and chemicals mixed in with the water particles. This image shows how distilled water is made from ONE type of matter, and all particles are the same, making it a pure substance.
This image also shows how tap water is made from MULTIPLE types of matter, and the particles are different, making it a mixture. More Examples of a Pure Substance Table Salt
Oxygen More Examples of a Mixture Pepper
Soft Drinks (Coca-Cola, 7-Up, Sprite)
Chocolate Milk Fun Facts about The Particle Theory of Matter Particles are always moving, even in a solid
When particles are heated, they move faster
Water is a unique substance because we can see all three of it's states
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